docs: added yarn script + README section on cacheTradablePairs script

Author: chapati23

README.md

@@ -12,6 +12,16 @@ npm install @mento-protocol/mento-sdk
 yarn add @mento-protocol/mento-sdk
 ```
 
-# Learn more
+## Tradable Pairs Cache
+
+Anytime we launch a new stable token, we need to update the tradable pairs cache.
+
+The `yarn cacheTradablePairs` script generates a TypeScript file containing a list of all tradable pairs on the Mento protocol. This file is used to cache the tradable pairs in the SDK and avoid costly re-fetching from the network.
+
+```sh
+yarn cacheTradablePairs
+```
+
+## Learn more
 
 You can find example usages of the SDK in the [mento-sdk-examples](https://github.com/mento-protocol/mento-sdk-examples) repository. For in-depth documentation and walk through explanations please see the [SDK section](https://docs.mento.org/mento/developers/mento-sdk) of the Mento docs.

package.json

@@ -30,7 +30,8 @@
     "prettier": "prettier --config ./.prettierrc.json --write **/*.{json,md,js,ts,yml}",
     "size": "size-limit",
     "test": "jest --runInBand --verbose",
-    "coverage": "jest --coverage"
+    "coverage": "jest --coverage",
+    "cacheTradablePairs": "ts-node scripts/cacheTradablePairs.ts"
   },
   "husky": {
     "hooks": {